purge_all 361 tools/perf/builtin-buildid-cache.c bool purge_all = false; purge_all 385 tools/perf/builtin-buildid-cache.c OPT_BOOLEAN('P', "purge-all", &purge_all, "purge all cached files"), purge_all 407 tools/perf/builtin-buildid-cache.c purge_all; purge_all 494 tools/perf/builtin-buildid-cache.c if (purge_all) {